DuraTech uses a Thermal tech blanket insulation encased between dual walls. the DuraTech chimney system offers the optimum in safety and performance. It keeps the outer wall cool, while ensuring high flue exhaust gas temperature for the best draft performance.
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DuraVent's DuraTech chimney system is the professionals choice for flue drafting solutions. DuraTechs high tech construction ensures an accurate and effective installation every time. DuraTech features light weight insulation, twist-lock fittings, support boxes with factory installed starter sections, and elbows with 360º swivel bases. You can even buy DuraTech with a black finish on select lengths.